Suction cleaner nozzle



p 29, 1964 A. 1. ELGERYD 3,150,402

SUCTION CLEANER NOZZLE Filed April 11, 1963 Fig: 4.

IN ENTOR. WW

QWMfM 5 I 23 ATTORNEY United States Patent 3,150,402 SUCTIGN CLEANERNOZZLE Alf Ingvar Elgeryd, Hagersten, Sweden, assignor to AktiebolagetElectrolnx, Stockholm, Sweden, a

corporation of Sweden Filed Apr. 11, 1963, Ser. No. 272,444 Claimspriority, application Sweden Apr. 11, 1962 Claims. (Cl. -325) Thisinvention relates to a suction cleaner nozzle of the type used forcleaning rugs, floors or other substantially large surfaces.

It is an object of my invention to provide an improved suction cleanernozzle of the described character formed of a plurality of easily andrelatively inexpensively manufactured parts which are simply and easilyassembled together, thereby to permit the relatively low cost productionof such nozzle.

Another object is to provide a suction cleaner nozzle with an elongatedhead having a suction opening extending therealong for use in removingdust from rugs, floors and other large, substantially fiat surfaces, andwherein the opposite ends of the head are formed with end wall openingscontiguous with the adjacent ends of the elongated suction open ng, andpermitting cleaning close to walls, furniture and the like.

Further objects and advantages of my invention will become apparent asthe following description proceeds, and the features of novelty whichcharacterize it will be pointed out with particularity in the claimsannexed to and forming part of this specification.

For a better understanding of my invention, reference may be had to thefollowing description taken in connection with the accompanying drawing,in which:

FIG. 1 is a perspective view of a suction cleaner nozzle embodying myinvention;

FIG. 2 is an exploded perspective view on a smaller scale than that ofFIG. 1, and illustrating the several elements which are assembledtogether to produce the suction cleaner nozzle of FIG. 1;

FIG. 3 is an enlarged sectional view taken along the line 33 on FIG. 1;and

FIG. 4 is an enlarged, fragmentary sectional view taken along the line44 on FIG. 1.

Referring to the drawing in detail, and initially to FIG. 1, it will beseen that I have there shown a suction cleaner nozzle embodying myinvention and which is generally identified by the reference numeral 10.The nozzle 10 comprises an elongated hollow head 11 which, at a regionintermediate its ends, is turnably connected to an upwardly inclinedtubular member 12, as hereinafter described in detail. The tubularmember 12 serves as an outlet socket adapted to be connected to asuction line or conduit of a suction cleaner through which air is drawnduring operation of the suction cleaner. The hollow interior of the head11 provides a passage through which air is drawn toward the outletsocket 12 from the region of an elongated suction opening 15 (FIG. 3)extending along the length of the head 11 at the side of the latterwhich is lowermost in FIGS. 1 and 3. The elongated suction opening 15 isintended for removing dust and other finely divided dirt and the likefrom rugs, floors and other large substantially flat surfaces. The head11 further has an auxiliary suction opening 16 at the side thereof whichis uppermost in the position shown on FIGS. 1 and 3, that is, at theside opposed to the elongated suction opening 15, and the auxiliarysuction opening 16 is communicated with the outlet socket 12 so that airis drawn toward the latter from opening 16 for picking up fine threadsand the like when the head 11 is turned or inverted with respect "ice tothe outlet socket 12 so as to dispose the suction opening 16 at thebottom of the head 11.

In accordance with my invention, the head 11 of the suction cleanernozzle is formed of two main parts 13 and 14 which respectively definethe suction openings 15 and 16.

The part 13 is a relatively thin-walled, channel-like member ofsubstantially U-shaped cross-section which is cut to suitable lengthfrom an elongated, sheet metal element bent so as to have the requiredcross-sectional configuration. The longitudinal edge portions of thechannellike member 13 are directed inwardly towards each other, as at17, and then upwardly, as at 18, to define the opposite longitudinalmargins of the elongated suction opening 15. It will be noted that theinwardly directed portions 17 form slide surfaces, while the upwardlydirected edge portions 18 cooperate with the inwardly directed portions17 to define interior channels 19 extending along the opposite sides ofthe suction opening 15.

Extending lengthwise in the channels 19 are elongated braces 20 whichclose the channels 19, at the top of the latter, and thereby provide theinterior of the channel-like member 13 with a shape which is mostfavorable for the flow of air from the suction opening 15. The braces 23also provide the channel-like member 13 with increased rigidity andstrength at the portions thereof engageable with a floor, rug or othersurface to be cleaned, and further are employed, as hereinafterdescribed in detail, for the purpose of securing end walls 21 at theopposite ends of member 13.

The end walls 21 are hollowed out to define inwardly opening cavities,as best seen on FIGS. 2 and 4, and are preferably formed of plastic soas to form bumpers for the sheet metal channel-like member 13. A Weight22 is cast or loosely inserted in the hollow cavity of one of the endwalls 21 so that, when the head 11 is lifted from the floor or othersurface being cleaned, the head will turn on the tubular member oroutlet socket 12 to a position where its weighted end is lowermost, fromwhich position the head can be conveniently turned to dispose either thesuction opening 15 or the auxiliary suction opening 16 against thesurface to be cleaned.

In accordance with this invention, the end walls 21 each have a grooveor slot 24 (FIGS. 1, 2 and 3) located so as to form an extension of thesuction opening 15 and communicating with a relatively wider end opening25 in the end wall. When the head 11 of nozzle 16 is positioned with itssuction opening 15 against a rug, floor or other relatively large fiatsurface, the groove or slot 24 and the end opening 25 of each end Wallpermit effective cleaning of the rug or floor close to walls, furnitureor other vertical surfaces.

When the end walls 21 are formed of plastic, wearing or scratching ofthe surfaces thereof at opposite sides of each groove or slot 24 byreason of sliding contact thereof with the surface to be cleaned isavoided by providing each end wall 21 with slide shoes 23 formed ofmetal strips bent so as to have a substantially C-shape (FIGS. 3 and 4).The inner ends of the slide shoes 23 engage in the groove 24 of therelated end wall, and the outer ends 23:: thereof engage in grooves 23bformed in the front and back surfaces of the end wall. As is best seenon FIG. 3, the slide shoes 23 extend below the portions 17 forming theslide surfaces of the channel-like member 13 so that, when the nozzle14) is employed for cleaning of a hard surface, the nozzle will slidesubstantially only on the slide shoes 23 thereby to reduce the area ofcontact with the hard surface being cleaned for facilitating maneuveringof the nozzle.

The end walls 21 are secured at the opposite ends of the channel-likemember 13 by means of screws 26 which pass through holes 27 formed inbosses of the end walls as an air inlet, the bottom walls havingopposing edge portions which extend upward to provide a pair of parallelchannels which extend leng rse of the body at opposite sides of the gap,each of the channels having elongated member therein which extendsbetween the onen ends of the body, end walls for closing the open endsof the body, and means including the elongated members for connectingthe end walls to the body.

8. A suction cleaner nozzle as set forth in claim 7 in which each of theelongated members srugly fits in a different one or" the channels andreinforces and strengthens the hollow body.

9. A suction cleaner nozzle as set forth in claim 8 in which theelongated members are hollow whereby the weight of the nozzle is kept ata minimum.

10. A suction cleaner nozzle as set forth in claim 7 in which thechannels define open grooves and the elongated members cover the opengrooves and define in part the air passage leading from the inlet.

References Cited in the file of this patent UNITED STATES PATENTSMoorhead June 6, 1905 Moorhead .iuly 13, 1999 Allen Dec. 25, 1934Replogle et a1 Mar. 19, 1935 Replogle Feb. 20, 1949 Gambardella Nov. 26,1940 Seyfried Feb. 9, 194-3 Hansson May 25, 1943 Kircher Oct. 19, 1943Brown Nov. 2, 194-3 Lofgren Mar. 20, 1945 Leslie Sept. 5, 1950 AllenDec. 23, 1952 Allen Nov. 8, 1955 Pettit et a1 Feb. 4, 1958 Anderson May8, 1962

1. A SUCTION CLEANER NOZZLE COMPRISING A HOLLOW HEAD AND AN OUTLETSOCKET EXTENDING FROM SAID HEAD FOR COUPLING TO A SUCTION CONDUIT OF AVACUUM CLEANER, SAID HEAD INCLUDING AN ELONGATED CHANNEL-LIKE MEMBER OFSUBSTANTIALLY U-SHAPED CROSS-SECTION HAVING LONGITUDINAL EDGE PORTIONSDEFINING AN ELONGATED SUCTION OPENING THEREBETWEEN, END WALLS AT THEOPPOSITE ENDS OF SAID CHANNEL-LIKE MEMBER, SAID LONGITUDINAL EDGEPORTIONS OF THE CHANNELLIKE MEMBER BEING DIRECTED INWARD TOWARD EACHOTHER AND FORMING SLIDE SURFACES AT THE OPPOSITE SIDES OF SAID ELONGATEDSUCTION OPENING, SAID LONGITUDINAL EDGE PORTIONS OF THE CHANNEL-LIKEMEMBER BEING FURTHER DIRECTED UPWARD AT THE OPPOSITE SIDES OF SAIDSUCTION OPENING TO FORM PARALLEL CHANNELS WITHIN SAID MEMBER AT SAIDOPPOSITE SIDES OF THE SUCTION OPENING, BRACES EXTENDING LONGITUDINALLYIN SAID CHANNELS, AND MEANS ENGAGING THE ADJACENT ENDS OF SAID BRACESFOR SECURING SAID END WALLS TO SAID CHANNEL-LIKE MEMBER.